Blackface Bias Mod or No?

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bulrich
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Blackface Bias Mod or No?

Post by bulrich » Thu Dec 27, 2007 7:31 pm

I have a 1970 Twin Reverb that supposedly had been blackfaced some time ago. I was digging around and not sure this looks to be a correct bias pot mod.

Can anyone tell me if this is correct?
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http://www.notifbutwhen.com/2/Offset-Basement.JPG
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